view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionChunk.java @ 4655:cd44d28d0fbc

Move the access to artifact data to the Access object Use BedHeightAccess class to receive the data from the artifact. This abstracts the data access from the actual artifact.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 11 Dec 2012 09:44:04 +0100
parents 5642a83420f2
children
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package de.intevation.flys.artifacts.model;

import java.util.List;
import java.util.Collections;

import java.io.Serializable;

import de.intevation.flys.model.CrossSection;

import de.intevation.flys.model.FastCrossSectionLine;

import org.apache.log4j.Logger;

public class FastCrossSectionChunk
implements   Serializable
{
    private static Logger log = Logger.getLogger(FastCrossSectionChunk.class);

    public static final String PREFIX = "FCSC:";
    public static final double KM_RANGE = 1.0;

    protected double startKm;
    protected int    crossSectionId;

    protected List<FastCrossSectionLine> crossSectionLines;

    public FastCrossSectionChunk() {
    }

    public FastCrossSectionChunk(CrossSection cs, double km) {

        crossSectionId = cs.getId();
        startKm = Math.floor(km);
        double stopKm = startKm + KM_RANGE;

        long startTime = System.currentTimeMillis();

        crossSectionLines = cs.getFastLines(startKm, stopKm);

        long stopTime = System.currentTimeMillis();

        if (log.isDebugEnabled()) {
            log.debug("Fetching cross section lines took " +
                (float)(stopTime-startTime)/1000f + " secs.");
        }
    }

    public FastCrossSectionLine getCrossSectionLine(double km) {
        FastCrossSectionLine key = new FastCrossSectionLine(km);
        int pos = Collections.binarySearch(
            crossSectionLines, key, FastCrossSectionLine.KM_CMP);
        return pos < 0 ? null : crossSectionLines.get(pos);
    }

    public static String createHashKey(CrossSection cs, double km) {
        return PREFIX + cs.getId() + ":" + (int)Math.floor(km);
    }

    public String getHashKey() {
        return PREFIX + crossSectionId + ":" + (int)Math.floor(startKm);
    }

    public double getStartKm() {
        return startKm;
    }

    public void setStartKm(double startKm) {
        this.startKm = startKm;
    }

    public double getStopKm() {
        return startKm + KM_RANGE;
    }

    public int getCrossSectionId() {
        return crossSectionId;
    }

    public void setCrossSectionId(int crossSectionId) {
        this.crossSectionId = crossSectionId;
    }
}
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